Cast your votes for the leaders, artists, innovators and icons who you think are the most influential people in the world. Though official voting for inclusion on the TIME 100 list has now closed, with Mir-Hossein Mousavi having won the honor, users can continue to vote for their favorites until the list is revealed on Thursday, April 29th

Sarah Palin

The former Republican vice-presidential candidate resigned her position as Alaska's governor to pursue public speaking, book writing and a career as a Fox News pundit, but she remains a leading voice in the party and a potential contender for the 2012 nomination for President. Her trademark antigovernment stance has meshed effectively with the burgeoning Tea Party movement, even as traditional GOP players continue to view her as an unreliable standard bearer.